20.04.2009, 08:40
Hi again,
Yesterday I finally ended to rewire all inside the Z124. I replaced all old wires with newer ones, so I could check all things better, even the wires from the board to the transistor over the deck of the board.
I realized yesterday late night that the down pin of the diode bridge was the fith diode!!!, I measured it and it was right, so I solder from the pin 8 to there and protect it with a small piece of dielectric as was the original wire. I took lot of pics of all the process, but they are at home and now I'm at work.
After the job I tested it and works better than before, but I think the power seems to be not enough in some cases, when the machine is recording and with the light of the meters lighting.
It would be helpful it you could check the voltage in the lateral contacts (as it were used as a battery) while the Z124 is connected to the UHER with the DIN cable.
With the machine just powered on I get around 7.5V. If I start recording, the voltage starts to drop, and if even I turn on the light of the meters, it drops more.
Yesterday I finally ended to rewire all inside the Z124. I replaced all old wires with newer ones, so I could check all things better, even the wires from the board to the transistor over the deck of the board.
I realized yesterday late night that the down pin of the diode bridge was the fith diode!!!, I measured it and it was right, so I solder from the pin 8 to there and protect it with a small piece of dielectric as was the original wire. I took lot of pics of all the process, but they are at home and now I'm at work.
After the job I tested it and works better than before, but I think the power seems to be not enough in some cases, when the machine is recording and with the light of the meters lighting.
It would be helpful it you could check the voltage in the lateral contacts (as it were used as a battery) while the Z124 is connected to the UHER with the DIN cable.
With the machine just powered on I get around 7.5V. If I start recording, the voltage starts to drop, and if even I turn on the light of the meters, it drops more.